Subsidiary holds an allocated net operating loss $($NOL$)$ when it leaves the Parent consolidated group. As a result:

a$.$ The loss is suspended for five years in case Subsidiary rejoins the group. At that time, Subsidiary uses the loss on its separate return.

b$.$ Subsidiary takes its allocated NOL and uses it on subsequent separate tax returns.

c$.$ The group keeps Subsidiary's allocated loss.

d$.$ The loss is suspended for five years in case Subsidiary rejoins the group; then Parent can use it$.$